Seiko Cal. 5638 - 487

Seiko 5638-487

The Seiko 5638-487 represents an important milestone in Seiko's 1983 lineup. It features a Black dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-15c1c0eab64b]

Also known as: Emperor, Arnie

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
37mm
Case Thickness
9.5mm
Lug Width
20mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
100m
Dial Color
Black
Jewels
17j
Frequency
36,000 bph
Power Reserve
42 hours
Year
1983

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